Question about Panasonic NN-C994S Convection/Microwave Oven

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Microwave oven runs when door is open, and does not always run.

We have a Panasonic microwave oven which we bought a few years ago. It has begun running when we open the door (DANGEROUS!). It also does not run consistently when we program it. It is about three years ago. What can you do to correct this problem, please?

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  • nanaval43 Dec 27, 2008

    I meant to say that it is about THREE YEARS OLD. 
    Thank you.

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  • Panasonic Master
  • 8,820 Answers

This is usually caused by either a bad door switch or a loose door switch mount, which are pretty simple problems to fix.

Even though a door switch clicks, it may still be bad inside.

Door switch or mount trouble is usually caused by slamming the door or by opening the door while it's cooking without hitting the Stop pad first.

There are plastic mounts inside the microwave which hold the door switches and onto which the door latches lock when you close the door.

The screws on these mounts may be loose. If they get too loose, the switches will not be activated properly.

Sometimes it's a broken tab on the switch holder, allowing the switch to rotate just out of position. This tab can be hard to see, since it is under the bottom edge of the switch.

If you or someone you know decide to look into it, we have critical information on safety, disassembly and door switches at our site, and our link is at our listing here on FixYa:.

If you only need a switch, you can order a universal type here for $5 postpaid.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Dec 28, 2008

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